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Journal Article Low Resistance Flexible Current Collector for Lithium Secondary Battery
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Authors
Jin Ho Yun, Gi-Beom Han, Yong Min Lee, Young-Gi Lee, Kwang Man Kim, Jung-Ki Park, Kuk Young Cho
Issue Date
2011-08
Citation
Electrochemical and Solid-State Letters, v.14, no.8, pp.A116-A119
ISSN
1099-0062
Publisher
Electrochemical Society (ECS)
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.1149/1.3596721
Project Code
10SB1400, Development of integrated flexible film battery system, Kim Kwang Man
Abstract
Flexible current collectors are fabricated through the placement of a thin copper layer onto various polymeric films such as poly (ethylene naphthalate) (PEN), poly(ethylene terephthalate) (PET), polyimide (PI), and poly(ether sulfone) (PES) by radio-frequency magnetron sputtering. Flexible current collectors with different Cu-sputtered thicknesses were examined as a current collector for lithium secondary batteries. As the thickness of the copper layer increased, the surface resistance of the flexible current collector decreased to the level of 1 ?? /Sq, which could make the unit cell based on the flexible current collector obtain comparable capacity as a copper metal foil current collector. © 2011 The Electrochemical Society. [DOI: 10.1149/1.3596721] All rights reserved.
KSP Keywords
Copper metal, Lithium secondary batteries, Low resistance, Metal foil, Poly(ether sulfone)(PES), Polyethylene terephthalate, Polymeric films, Radio Frequency(RF), Radio frequency magnetron sputtering, Thin copper layer, ether sulfone(Poly)